Toy aeroplane.



EJBUESATH.

TOY AEROPLANE. APPLICATION FILED DEC.23. 191a 1,300,564. Patented 'Apr.15, 1919.

2 SHEETS-SHEET 2- 1 INVENTOR. [fin/57 491/584 776 4 A TTORNEYS;

ERNEST nmnsa'rn, ro'e'rtann, oianeorr, assrenon or ONErHALF r0 GEORGE W-10E 'WZETT, 8h PORTLAND, OBEGQN.

rot" AERGPLAIIE.

:1 ,so soa.

Application filed heseraher through a series of graceful evolutions inmid air.

The objects of my invention are, to amuse children and to show them theeffects of air on light bodies of certain shapes.

I attain these objects by the mechanism illustrated in the accompanyingd rawings in which- Figure I is a plan view of the entire ma chine; H, aside view; Fig. till a front view; Fig. IV, on a larger scale, a sectionthrough the releasing i'nechanism for the elevation plane taken alongthe line in Fig. 1;and Fig. V is a slight modification of Fig. IV.

Similar numerals refer to similar parts throughout the several views.

My aeroplane resembles in miniature somewhat the type con'nnonly knownas the Pfeil i'nonoplane. It has a lengthy body portion called fuselage1 and, attached to the latter at about the center oi gra l y, tl mainsupporting plane At the tar end We see the tail plane 3 and. hinged toit at 4, the elevation plane 5. (in top of the tail plane is thevertical fin (l. and on top of the elevation plane the tin 7. A tensionmember 8, preferably a rubber band, at the upper edge ol the fins willhold the elevation plane 5 at an angle to the "fuselage, as shown by thedotted lines 5 in Fin". ll. T he angularity is predetermined by thestops 9.

The chassis near the head end is represented by the downwardly andlaterally extending legs 10 with the brace rods 11 in side View, thearched brace 12 in trout View, and the wheels 13.

Underneath the fuselage is the propeller rod 14, held slidably at thetail end in the bearing 15, and mounted screwably at the head end in adownward extension 1 8 of the fuselage. A propeller 1*. is firmlyattached to the forward end at the propeller rod 14'. It may here bepointed out that, adja- Specification of Letters Zlatent.

Patented Apr. 15;, 1919;. 191s. Seria.1No.268,020.

cent to the propeller, a portion of the thread on the rod 14; has beencut away; the length of the gap 18 to correspond with the length of thefen'ialo thread in Which the rod is mounted. The result of this is, thatthe propeller 17 in revolving will shift the rod.

in axial direction throughout the whole length of the thread on the rod,but having arrived at the gap 18, the shifting ceases while thepropeller is free to revolve unhindered.

The tail end of the propeller rod 14 operates the releasing mechanism orthe elevation plane. In Fig. IV this releasing mechanism is illustratedin detail. Attached to the fuselage are the hangers 19, and pivoted.

between them at 20 is the bell crank 21. The upright member of the bellcrank is limited in its movements by thenears 22 at the upper part ofthe hangers extending into the path of said member. leg of the nose 23,and latter engages a tongue 24 which extends "from the elevation plane 5downwardly through a slot 25 in the fuselage. Thus a. pressure of thepropeller rod against the upright member of the bell crank will releasethe tongue and set tl1e.eleva tion plane.

A. slight modification of the releasing mechanism is shown in Fi. VWhere the tongue 24 is stamped out of the elevation plane I) and adaptedto rest in the set position with its lower edge 26 against the fuselage.In this variation the stops 9 referred to in Figs. I and II may beomitted.

A suitable hook 27, depending from the fuselage near the chassis, servesto attach the rubber sling 28.

To operate the aeroplane. the nropellerl'? is turned. manually counterclockwise as fa r The horizontal bell crank carries at its end a as thethreads on the propeller rod 14 will permit, and left. with thepropeller blades extending horizontally. The rubber sling 28 is slippedover the book 27, the operator takes the handle :29 of the rubber sling;into his right hand 30, and with the left hand 31 he takes-hold of theextension 32 to the fuselage at the tail end. The aeroplane is'nowprojected into space. The air resistance will set the propeller inmotion and the propeller rod will be screwed back until the bell crankreleases the elevation lan.

Due to the setting of the elevation plane. the eourse ot' the toy willhe changed from a trajm-tory to a vertieal loop antl these loops willeontinue so long as the propelling momentum is greater than the toree.of gravity. lmt at last gravity hegins to assert itself amt the marhinewill lloat in the air, sometimes (leseemling in a hallistie curve hutmore frequently (leserihing large eireles like an eagle who is eyeingits prey. till the ever lowering movements are interruptetl hy theearth. ()t e i'irse. all these movements are apt to 'variations hroughtabout, by the wind or h aeeitlenta'l or intentional huekling or warpingot' the planes.

Any suitahle material may he employetl in the manut'aeture of mymaehine. hut it' the fuselage aiul the main supporting plane he made ofvery light. metal. it is lesirahle that the reintoreing ritlges 33) helttlllpttl or emhossetl at the proper plaees. in or ler to preventhueltling aml eo'nsequently ill tunetioning of my apparatus.

Having t'ully tles rihetl my invention it will he seenthat myohjeetshave heen aeeon plishetl. an l though 1 have shown the preferredform of eonstruetion. I, reserve to myself the. right to malte minorehanges in this maehine. providing l (lo not violate tl. spirit. amtprineiple of my elaims;

I claim:

'1, in a toy aeroplane. the eonihination ot' a .t'uselage, a mainsupporting plane above the eenter ol gravity of the fuselage, a tailplane, an elevation plane :ltljttt'ttlt to the tail plane, \iertiealtins on top of tail amt elevation plane. means for operating the ele\"ation plane in mitl air. an l means tor-pro- .jeetiing the aeroplaneinto spat-e.

2. In a toy aeroplane. the eomhination ot' a. fuselage, a main suporting plane ahove the renter ol gravity ol' the 't'uselage. a tailplane.- an elevation plane ,tttltttllttl to the tail plane, vertiealtins on top o't'tail aml elevation plane. a ehassis at the heail erul ofthe l'uselage. means to operate the elevation plane (luring the llight.aml means to projeet the aeroplane into spaee.

3. la a toy aeroplane. the eomhination of a t'uselage. a main supportingplane extemling laterally from the fuselage ahove its eenter ot'gravity. a'tail plane. an elevation plane hinged to the tail plane.vertieal tins on top ol' tail amt elevation plane. a tension memherbetween tail atnl elevation plane. a. wheel earrying ehassis at thellttttl eml ot the fuselage. means to operate the elevation plane(luring the flight. aml means to projeet the aeroplane int'o spat-e. I

4-. In a toy aeroplane. the eomhinati't-m ot a fuselage. a mainsupporting plane. a tail plane. an elevationplane. vertieal tins on topot' tail aiul elevation plane. stops ab taeljie l to the tail plane toltOltl the elevation plane at an angle to the fuselage. a tensionlnemher hetween tail aml elevation plane. a tongue extending(lUWllWilItl from the elevze tion plane through the t'uselage. a helleranlt :ulaptetl to engage saitl tongue, means to re-- lease saitlelevation plane in mitl air. ttlltl means to projeet the aeroplane intospat-e.

In a toy aeroplane. the. eomhination ot a. l'uselage, a main supportingplane. a tail plane, an elevation plane. vertieal tins on top o'l' tailaml elevation plane. a tension memher hetween tail an l ele 'ationplane. a tongue extending downward from the elevation plane. a hell('l'tlllh umlerneath the 'l'uselage to l\()l(l saitl' tongue. athreailetl propeller rotl uiulerneath the fu elage atlaptetl to'l'eleasein ltlltl air saitl tongue l'rom the hell eranlt. a propellernpel'tllttl' hy the resistanee ol the air aml aetuating the propellerrotl. amt means to projeet the aeroplane into spaee.

